Whats up, I'm having some problems installing an oil temp guage, it is electrical, with a sending unit 1 wire, ingition and ground. I have ran all the wires correctly double and triple checked them. When I turn my ingition it comes on and reads maxd out, the motor is cold since i was in the process of changing the oil. any ideas?? Thanks, also if it matters 03 zetec, greddy oil filter adapter w/auto meter sending unit/guage installed. Thanks for any help or insight into this.

ahh I have, numerous times. what constitutes a bad ground anyway, Im starting to think its where the sender unit goes in to the greddy adaptar. Im not even sure about how to ground the sending unit, its supposed to ground through the threads.

ahh well check them again.
it can be either the ground at the sending unit or the ground for the gauge.
a pegged gauges is due to a bad ground, period.
i suggest using sandpaper and file down where your connections are. this will help.
make sure your sending unit ground is actually a ground. where are you grounding these?

The sending unit is supposed to ground through the threads, the oil filter adapter is aluminum though, so im not sure how im supposed to ground it.

You need to run the ground wire on the gauge to a better ground. The stereo ground would work well. The sending unit will not work as a ground for the gauge , because it is sending/recieving an electrical current in order to return the position of the sending unit. Just a quick question, what is the range of the gauge? 0-100?

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1/4 mile is what now?[Team Duratec #86] [L.O.T.H #7]Like MAC products for your Mustang or Focus? Come talk to me, I'll help you out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

The guage is an autometer 100-250 degree, The only thing I can figure is the sending unit needs to be grounded, Im not grounding the guage through the sending unit,The sending unit is supposed to ground its self through its treads. I grounded the guage where I grounded my voltmeter and oil press guages, and they work good.

Oops sorry, about the 0-100... thought it was a oil pressure gauge.... The sending unit is grounded, because it is attached to the block. Aluminum conducts electricity. Maybe there is an obstruction at the sending unit? or the wire? Did you check continuity of the sending wire? its possible its damaged.

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1/4 mile is what now?[Team Duratec #86] [L.O.T.H #7]Like MAC products for your Mustang or Focus? Come talk to me, I'll help you out To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Alright its fixed I just want to say Thank you so much Scrammer and Mighty Mouse for all your input, what happened was the sending unit got turned when tighting up the filter adapter, and was touching the block thus giving the problem, so its all good now, Thanks

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